Grey pig iron

基本解释灰品生铁

网络释义

1)Grey pig iron,灰品生铁2)grey iron,灰生铁3)graphite pig iron,灰口生铁4)gray iron,灰铸铁;灰生铁5)dark gray pig iron,暗灰色生铁6)gray forge pig,可锻灰生铁